New Westminster was the name, or part of the name, of several Canadian federal and provincial electoral districts. All provincial and federal ridings in the area of the Lower Mainland were part of the original New Westminster ridings. "Offspring" ridings are indicated accordingly.
Federal
Historical
- New Westminster District, 1871–1872
- New Westminster (federal electoral district), 1872–1976
- Westminster District, 1914–1919
- Fraser Valley, 1919–1966
- Fraser Valley East, 1966–1996
- Fraser Valley, 1996–2003
- Surrey (later Surrey—White Rock), 1966–1976
- Surrey—White Rock—North Delta, 1976–1987
- Abbotsford, 2003–present
- Chilliwack—Fraser Canyon, 2004–2015
- Fraser Valley West, 1966–1996
- Langley—Matsqui, 1996, 1997 (never used; named changed to:)
- Langley—Abbotsford, 1997–2003
- Abbotsford, 2003–present
- Langley, 2004–2015
- New Westminster—Coquitlam, 1976–1987
- Burnaby, 1976–1987
- Burnaby—Kingsway, 1987–1996
- Burnaby—Douglas, 1996–2013
- New Westminster—Coquitlam—Burnaby, 1996–2003
- Burnaby—New Westminster, 2003–2013
- New Westminster—Coquitlam, 2003–2013
Current
- New Westminster—Burnaby, 1987–1996, 2015–present
Provincial
Historical
- New Westminster, 1871–present
- New Westminster City, 1871–1912
The New Westminster riding originally included all of the Lower Mainland outside of the City of New Westminster, such that all Fraser Valley and Vancouver ridings are derivatives of the New Westminster riding, which became a three-member renamed Westminster for the 1890 election before being partitioned into four ridings. The following table attempts to trace the lineage of the Lower Mainland ridings (other than those in Vancouver or the North Shore, which can be found on Vancouver (electoral districts):
- Westminster 1890 only
- Westminster-Chilliwhack 1894–1900
- Westminster-Delta 1894–1900
- Langley 1966–1986
- Central Fraser Valley (1979–1986)
- Delta 1903–1986
- Surrey (1966–1983)
- Surrey-Newton (1986–present)
- Surrey-Guildford-Whalley (1986 only)
- Surrey-White Rock-Cloverdale (1986 only)
- Langley 1966–1986
- Westminster-Dewdney1894–1900
- Dewdney 1903–1986
- Maple Ridge-Mission (1991–present)
- Coquitlam (1966–1975)
- Coquitlam-Moody (1979–1986)
- Maillardville-Coquitlam (1979–1986)
- Coquitlam-Maillardville (1991–present)
- Burnaby (provincial electoral district) (1924–1963)
- Burnaby-Willingdon (1966–present)
- Burnaby-Edmonds (1966–present)
- Burnaby North (1966–present)
- Dewdney 1903–1986
- Westminster-Richmond 1894–1900
- Richmond 1903–1920, 1966–1986
- Richmond-Point Grey 1924–1928
- Richmond 1903–1920, 1966–1986
And all Vancouver, North Vancouver and West Vancouver ridings are "descendants" of the original New Westminster riding.
Current
- New Westminster, 1871–present